Question

Pleaseeee solve this ?

Answer 1

Answer:

123

Here's your Answer

Answer 2

Step-by-step explanation:

2(x+y)^2 +(x-y)^2

[now, given

x^2+y^2=34

and xy =21/2 ]

2(x^2+y^2+2xy)+(x^2+y^2-2xy)

2x^2+2y^2+4xy+x^2+y^2-2xy

3x^2+3y^2+2xy

3(x^2+y^2)+2xy

3(34)+2(21/2)

102+21

123

hope it helps!!!

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